Cutting-off attachment for machines for making corrugated cardboard.



S. A. GOLDBERG.

CUTTING OFF ATTACHMENT FOR MACHINES FOR MAKING CORRUGATED CARDBOARD.

APPLICATION FILED SEPTA, 1012 Patented Mar. 10, 1914.

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Q/vi lmcbac o 744 A z; z 7% 261644 S. A. GOLDBERG. CUTTING OFF ATTACHMENT FOR MACHINES FOR MAKING CORRUGATED CARDBOARD. APPLICATION FILED SEPT. 4, 1912.

1,089,834. Patented Mar.10, 1914.

3 SHEETS-SHEET 2.

S. A. GOLDBERG.

CUTTING on" ATTACHMENT FOR MACHINES FOR MAKING CORRUGATED CARDBOARD.

APPLICATION FILED SEPT. 4, 1912 Patented Mar. 10, 1914;

3 SHEETSSHEET 3.

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SAMUEL A. GOLDBERG, OF NEW YORK, N. Y.

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To all whom it may concern."

Be it known that I, SAMUEL A. Gonnnnno, a citizen of the United States of America, residing in New York, in the borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Cutting-Oil" i\.ttaeh ments for Machines for Making Corrugated Cardboard, of which the following is a specification.

The object of this invention is to furnish to manufacturers of corrugated cardboard an attachment for cardboard-making 1na chines by which blanks of corrugated board of the required length are autonnilically cut oil in a quick and reliable manner and for this purpose the invention consists of a cutting-oft" attachment for corrugated cardboard making machines which comprises a set of feed and guide rollers for the cardbeard, laterally movable guide-plates for the board, means for actuating said guideplates at the proper time, an adjustable stopgagc, a verticallyreciprocating knife for cutting off the proper length of blanks and a lever mechanism interposed by the stopgage and the teed-rollers for automatically interrupting the feed-motion of the cardboard to the cutting-knife and returning the guide-plates and the stop-gage into normal position.

T he invention consists further of certain details of construction which will be fully described hereinafter and finally pointed out in the claims.

In the acconipanying drawings, liigure 1 represents a side-elevation of my improved cuttingoff attachment for machines for making corrugated cardbmirds, Fig. 2 is a plan-view of Fig. 1, Fig. 3 is an elevation of the attachment, taken at the right-hand end, and F t is also an end-elevation, showing the guide-plates moved laterally out of the way for dropping the cut-oft corrugated cardbcmrd-blanks.

Similar letters of reference indicate corresponding parts throughout the different figures of the drawings.

deferrin to the drawings, a, a represent a. pair of teed-rollers by which the corrugated cardboard o is fed from the cardboard machine to the cutting off attachment proper. The cardboard o is then taken up by two pairs of guide'rollers b, 0 which are arranged in bearings of the supporting frame f of the attachment. The supporting Specification of Letters Patent.

Application filed September 4, 1912.

Patented Mar. 10, 1914,

Seria1No.718,561.

frame f is provided at its ends with upright standards f which are extended above the horizontal portion of the frame as shown in Fig. 1 and provided with vertical guideslots 7&2 for the oblong supporting frame k of the cutting-knife 7a. The frame 1: of the cuttingknife ll: extends transversely between the uprights f of the 1 nine and receives intermittent vertically-rcciprocating motion by means of connecting rods in which are pivoted to cars if at the lower part of the frame 0 as shown in Fig. 3, said connectingrods being strapped at their lower ends to eccentric cams in on a transverse shaft 8, which is supported in bearings of the sidestandards f, the cams being located between collars M on the shaft 8. Rotary motion is imparted to the actuating-shaft s by a sprocket wheel and chain transmission g, 9 from the driving shaft S which is rotated by a belt and pulley p p, as shown in Fig. 1. To the driving-shaft S are applied gearwheels 5 which transmit rotary motion to pinions g on the shaft of the upper feedroller (4 of thx 1 ttachment and thereby to the 'l.ecdro1lcrs a a while a chain and sprocket wheel transmission g, between the shaft of the upper feed-roller a transmits motion to one of the upper :leed-rollers Z).

In line with the horizontal portions of the s1ipporting-frame f" and symmetrically with the longitudinal axis of the cardboard making machine is arranged a stop-gage (Z, which is adjustably applied to a center-rod d that is pivoted at its outermost end to a suspension rod (Z which is pivoted at its upper end to ears of attached to the ceiling or other support. The opposite or inner end of the center rod (Z is pivoted to a short crank-arm (l at the center of a transverse rock-shaft (F which is supported in bracket bearings c on the uprights f of the supporting-frame f. One end of the transverse rock-shaft (Z is provided with a short cam (Z which engages one end of a lever 41 which is fulcrumcd to a plate 70 on the upright standard f and which is connected at its opposite end by a pivot-1ink d with an elbow-lever d that is fulcrumed to the supporting-frame j and connected at its lower end with a spring-cushioned rod {Z that is guided in lugs (Z on the supporting-frame, said rod being provided with a stopaiut (Z at its outer end and with a helical spring d which is placed between the upper lug (Z and. an adjustable screw-nut on the slide rod. The lower arm of the elbow-lever (5 is pivotally connected between the fulcrum of the elbow-lever (Z and its pivot connection with the slide-rod d with a clutch-rod rZ' which engages by its opposite end a forked shifting lever (Z that ac-tuates a clutch (Z on the driving-shaft s so that immediately on the release of the short cam (Z on the rock-shaft (Z due to the abutting of the cardboard fed by the cardboard machine against the stop-gage (Z, the lever (Z is released and the clutch-rod (Z actuated so as to shift the clutch (Z on the driving-shaft S and move it out of gear with the gearwheel g and into gear with the sprocketwheel and produce the instant arresting of the motion of the feed and guide-rollers a, a and b, b the stopping of the forward feed of the cardboard and the actuation of the cutting-knife. Simultaneously with the release of the lever (Z the upper arm of the elbow-lever d is lowered and thereby a short lever e which is fulcrumed to the sup porting frame f moved downwardly so that a pivot-rod 6 connected with the lower end of the lever e and guided in keepers e of the upright f is raised and thereby a stop 6 at its lower end released fro-m a recess of a roller 6 on the shaft 3, whereby the actuating-shaft s can be rotated by the sprocketchain and wheel transmission g, 9 g from the driving shaft for reciprocating the cutting-knife is and cutting ofi the blank fed by the feedand guide-rollers a, a and Z), 5 against the stop-gage (Z.

The corrugated card-board which is fed to the proper length beyond the cuttingknife is is supported on two guide-plates 71. which are located at the lower ends of an gular laterally-oscillating hanging-rods if that are clamped at their upper ends to longitudinal rods h which turn loosely in bearings of transverse bars if. The bars it are supported by stationary rods it from the ceiling, as shown in Figs. 8 and 4. To the transverse bar 1 2, adjacent to the upright standards f are clamped by set-screws h sleeves 7L through eyes of which are passed the inner ends of the rods h which latter are provided with crank-arms it that are pivotally connected with an oscillating rod h which is fulcrumed to a central keeper [2.8

on the transverse bar b said rod it being; connected at its laterally-extended end witha vertical actuatlng rod h which 1s guided;

n keepers h on one of the uprights f and provided in its upper portion with a turn-F buckle it for adjusting its length, and there by the lateral motion or stroke of the hanger-rods 71. The lower end of the actuating-rod h is provided with an antifriction-roller 9 which moves over the circumference of a cam r at the rlght-hand end of the shaft .9 as shown clearly in Figs. 8-

and 4t. The actuatingrod h is called into action simultaneously with the cutting-off of the piece of cardboard by the verticallyreciprocating knife is, so as to oscillate the guide-plates it from their normally-horizontal position, shown in Fig. 3, sidewise into an inclined position, as shown in Fig. 4, and permit thereby the dropping of the cut-out blank of cardboard onto the pile of cardboards below the guide-plates. As soon as the blank of corrugated cardboard which is cut off is delivered to the pile, the guideplates 71 are returned into their horizontal position so as to receive the next length of cardboard fed forward from the cardboard machine. The dropping of the blank releases also the stop-gage cl and permits it to return into vertical position while the cutting knife is returned into raised position by the remeshing of the clutch with the driving-shaft S and the return of the intermediate parts of the clutch-unmeshing mechanism into their normal position, shown in Fig. 1, and reengagement of the lever (Z with the cam (Z ready for the next cuttingoff action of the knife. The return-motion of the intermediate clutch-releasing levermechanism is assisted by the tension of the helical spring (2 on the slide-rod (Z simultaneously with the return-motion imparted to the guide-frame of the cutting knife by the roller 0 cams 7c and connecting-rods lVith each full rotation of the driving shaft the cardboard is fed forward beyond the cutting knife for the required length until it strikes the stop-gage, which in.- stantly releases the intermediate levermechanism between the releasing cam of the stop-gage and the driving gear of the feed-rollers, so as to arrest the motion of the same while the stop-device of the knife actuating-mechanism is released and the latter reciprocated for cutting off the blank. Simultaneously the guide-plates for the blank are oscillated and the blank dropped clear of the same, the parts are then returned to their former or normal position and actuated by the next rotation of the driving shaft and so on until the required number of blanks of a certain width and length is obtained.

The intermittent stopping of the feedmotion of the cardboard, together with the actuation of the cutting-knife, when the cardboard arrives against the stop-gage (Z, by which the actuation of the intermediate lever mechanism, the ungearing of the feed.- rollers and the downward motion of the cutting knife are produced, permits the automatic cutting-olf of the blanks of cardboard of any desired length as the same is fed from the cardboard machine, so that the blanks of the required size are obtained as the corrugated cardboard is delivered from the machine, and thereby a considerable saving in the manufacture of boxes, wrappers and other articles from corrugated cardboard is obtained.

I claim:

1. A cutting-oil attachment for machines for making corrugated cardboard, comprising intermittentlyiotaated feed-rollers, spaced guide-plates for the cardboard, bearings laterally and independently adj ustable, for supporting said guide-plates, means for oscillating said. guide-plates, a stop-gage suspended in the path of the cardboard, means between the stop-gage and the driving mechanism of the feed-rollers :lor interrupting the motion of the same, and a vertically-reciprocating euttingkni'le a dapted to cut off the proper length of cardboard as soon as it :forms contact with the stop gage.

2, A cutting-oft attachment tor machines for making corrugated cardboard, comprising intermittently actuated :leed rollers, spaced guide-plates for the cardboard, bearings laterally and independently adjustable for suspending the guide-plates, means tor oscillating said guide p-lates in lateral direction, a stop-gage suspended in the path of the cardboard, means between the stop-gage and the driving mechanism of the feedrollers :tor interrupting the motion of the same, a vertically guided cutting-knife adapted to cut ott the proper size of cardboard as soon as the same terms contact with the stop gage, means for intermittently reciprocating the cutting-knife, a stop de vice for the cutting knife and means for returning the stopping means of the :teedrollers and ot the cutting knife into their normal position for the next actuation of the same.

3. A cutting-oil attachment for machines for making corrugated cardl'ioard eompris ing intermittently-actuated feed-rollers, spaced guideplates for the cardboard, bearings laterally and independently adjustable For suspending the guide-plates, means for oscillating said guide-plates in lateral direction, an adjustable stop-gage, means for supporting the stop-gage in the path of the card board, means between the stop-gage and the driving mechanism of the teed-rollers for interrupting the 'lred-nmtuin ot the same, a vertically guided cutting-knife adapted to cut ott the proper length of cardboard as soon as it forms contact with the stop-gage, means tor vertically reciprocating the cuttingdmite, a stop-device for the same and means for releasing the stop device and permitting the actuation of the cutting-knife.

-il. in a cutting-oil attachment for cardboard machines, the combination of intermittently-actuated teed-rollers, spaced guide-plates for the cardboard, bearings laterally and independently adjustable for suspending the guide-plates, an oscillating lever for operating said guide-plates, a connecting-rod connected with said lever, means for adjusting the length of said connecting rod, a stopgage tor the cardboard, means tor suspending the stop-gage in the path of the cardboard a vertically guided cutting lcni'i'e, means for intermittently reciprocating the cutting linilie, a stop-device for said cutting lcni'l'e, means for releasing said stopdevice, a clutch device between the feedroller driving means and cutting-lnii'te actuating means, and a lever mechanism be tween the stop-gage and clutch-device for arresting the motion of the teed-rollers and (an'dhoard simultaneously with the release oi the stop-device oi the cutting knife and actuation of the same.

fln testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

SAIMIUEL A. GOLDBERG. Vitnesses PAUL Gonren, Jenn Mnn'moi-i.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

